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MonitoringOregon AG filing · June 11, 2026

AssetMark Data Breach Exposes Client Financial Information

AssetMark, Inc., a prominent wealth management platform, reported a data breach on May 15, 2026, to Oregon regulators. This incident involved the exposure of sensitive client financial and personal information. Individuals who received a notification letter should carefully review its contents to understand the specific data impacted and their potential next steps.

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This breach is real, not a scam. AssetMark, Inc. officially reported it to the Oregon Attorney General on June 11, 2026.

Reviewed by David S. Harris, Esq., data breach and class action attorney (Florida Bar No. 0112739). Free consultation: 786-306-7278

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State
Oregon
Breach date
May 15, 2026
Reported
June 11, 2026

What may have been exposed

  • Full Name
  • Social Security Number
  • Date of Birth
  • Financial Account Number
  • Routing Number
  • Investment Portfolio Details
  • Transaction History
  • Mailing Address

AssetMark, Inc., a company central to wealth management and financial advisory services, recently disclosed a data breach that occurred on May 15, 2026. This security incident was reported to the Oregon Attorney General on June 11, 2026, indicating that sensitive client data entrusted to AssetMark may have been compromised.

According to the breach information, the exposed data types include Full Name, Social Security Number, Date of Birth, Financial Account Number, Routing Number, Investment Portfolio Details, Transaction History, and Mailing Address. This combination of personal identifiers and detailed financial records is particularly concerning for those affected.

The compromise of such comprehensive financial data creates substantial risks. Individuals whose information was exposed could face heightened threats of unauthorized financial transactions, fraudulent account creation, or identity theft. Bad actors might leverage this data for targeted phishing campaigns or to gain access to other financial services.

As a financial services entity, AssetMark is subject to stringent regulations designed to protect client data. The occurrence of a breach involving these specific data types often raises questions about the adequacy of security measures in place to safeguard sensitive information from unauthorized access.

If you received a data breach notification letter from AssetMark, Inc., it serves as formal acknowledgement that your confidential information was involved in this incident. Understanding the implications of this notice is crucial. We invite you to learn more about your rights and options by requesting a free case review.

What to do if you were affected

Based on the categories of information reported in this filing, these steps can help limit the risk of identity theft and fraud.

  • Freeze your credit

    Place a free credit freeze with Equifax, Experian, and TransUnion. A freeze blocks new accounts from being opened in your name and can be lifted anytime.

  • Watch your financial accounts

    Review bank and card statements for unfamiliar activity and turn on transaction alerts. Report anything you don't recognize to your bank right away.

  • Stay alert to targeted scams

    Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.

  • Keep your notification letter

    Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.

AssetMark, Inc. data breach notice and letter questions

Is the AssetMark, Inc. data breach letter legit or a scam?
A notice from AssetMark, Inc. in the mail matches the breach AssetMark, Inc. reported to the Oregon Attorney General on June 11, 2026. Check that the company name and dates in your letter match that filing. A real notice of data security incident won't ask for your password, Social Security number or a payment — if it does, contact AssetMark, Inc. through a phone number or website you find yourself.
Where can I see the official AssetMark, Inc. breach notice?
AssetMark, Inc.'s report is published by the Oregon Attorney General: https://justice.oregon.gov/consumer/databreach/#AssetMark%2C%20Inc.-2026-06-11 Compare it with the letter you received to confirm the dates and details match.
How many people were affected by the AssetMark, Inc. data breach, and what was exposed?
The filing does not give a count of affected people and lists the following information as involved: Full Name, Social Security Number, Date of Birth, Financial Account Number, Routing Number, Investment Portfolio Details, Transaction History, Mailing Address. Your own letter is the best guide to what was exposed about you, since notices are usually tailored to each person.
Did AssetMark, Inc. offer free credit monitoring?
Any free monitoring AssetMark, Inc. is offering will be described in the notice you received, along with an activation code and a sign-up deadline. Because Social Security numbers are listed in this filing, identity monitoring and a credit freeze matter more than usual. Enrolling does not give up your right to bring a claim.
What should I do after getting the AssetMark, Inc. data breach notice?
Keep the letter and the envelope, and note the date it arrived. Freeze your credit with Equifax, Experian and TransUnion, change any passwords the notice mentions, and sign up for any free credit monitoring the letter offers. Then check whether you may have a claim.
Is there a AssetMark, Inc. data breach class action lawsuit?
Law firms often open an investigation after a breach notice like this one, and a class action lawsuit may follow. This page doesn't confirm that a lawsuit has been filed against AssetMark, Inc.. You usually don't have to join a class action to be included — if a settlement is reached, class members are notified and can file a claim.
Do I need a AssetMark, Inc. data breach lawyer or attorney?
Talking to a data breach attorney costs nothing here. A lawyer can read your notice, explain your rights under your state's law and tell you whether a claim makes sense.
How much could a AssetMark, Inc. data breach settlement or claim be worth?
There is no set amount, and no AssetMark, Inc. settlement is confirmed here. In past data breach settlements, payments depended on what data was exposed and on documented losses — fraud, out-of-pocket costs and time spent dealing with the breach. The filing lists Full Name, Social Security Number, Date of Birth as involved. Keep receipts and records; they're what damages claims are built on.
Can I sue AssetMark, Inc. over the data breach?
It depends on what was exposed, the law in Oregon and your own state, and whether you've been harmed. Most people take part through a class action rather than suing alone. Keep your notification letter — it's the proof that connects you to the breach.

Source: Oregon Attorney General filing

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